<template>
    <div class="sidebar">
        <el-menu
            class="sidebar-el-menu"
            :default-active="onRoutes"
            :collapse="collapse"
            background-color="#324157"
            text-color="#bfcbd9"
            active-text-color="#20a0ff"
            unique-opened
            router
        >
            <template v-for="item in items">
                <template v-if="item.subs">
                    <el-submenu :index="item.index" :key="item.index">
                      <template slot="title">
                          <i :class="item.icon"></i>
                          <span slot="title">{{item.title}}</span>
                      </template>
                      <template v-for="subItem in item.subs">
                          <el-submenu 
                          v-if="subItem.subs"
                          :index="subItem.index"
                          :key="subItem.index">
                          <template slot="title">{{subItem.title}}</template>
                            <el-menu-item 
                            v-for="(threeItem,i) in subItem.subs"
                            :key="i"
                            :index="threeItem.index">{{threeItem.title}}</el-menu-item>
                          </el-submenu>
                          <el-menu-item 
                          v-else
                          :index="subItem.index"
                          :key="subItem.index">{{subItem.title}}</el-menu-item>
                      </template>
                    </el-submenu>    

                </template>
                <template v-else>
                    <el-menu-item :index="item.index" :key="item.index">
                        <i :class="item.icon"></i>
                        <span slot="title">{{ item.title }}</span>
                    </el-menu-item>
                </template>
            </template>
        </el-menu>
    </div>
</template>

<script>
import bus from '@/utils/bus'
import "../../assets/css/main.css";
import "../../assets/css/color-dark.css";
export default {
    data() {
        return {
            collapse:false,
            items: [
                {
                    icon: 'el-icon-s-home',
                    index: 'houseOwnerCenter',
                    title: '个人中心'
                },
                {
                    icon: 'el-icon-date',
                    index: 'changePwd',
                    title: '修改密码'
                },
                {
                    icon: 'el-icon-edit',
                    index: 'changeMyHouse',
                    title: '我的房子'
                },
                                {
                    icon: 'el-icon-s-promotion',
                    index: 'messageTips',
                    title: '系统消息'
                },
            ]
        };
    },
    computed: {
        onRoutes() {
            return this.$route.path.replace('/', '');
        }
    },
    created() {
        bus.$on('collapse',msg=>{
            this.collapse = msg;
            bus.$emit('collapse-content',msg);
        })
    }
};
</script>

<style scoped>
.sidebar {
    display: block;
    position: absolute;
    left: 0;
    top: 50px;
    bottom: 0;
    overflow-y: scroll;
}
.sidebar::-webkit-scrollbar {
    width: 0;
}
.sidebar-el-menu:not(.el-menu--collapse) {
    /* width: 250px; */
    width: 200px;
    /* background-color: #409EFF; */
}
.sidebar > ul {
    height: 100%;
}
</style>